The Ángeles Alvariño oceanographic vessel is a key player in the judicial proceedings opened as a result of the disappearance of Olivia and Anna. The vessel of the Spanish Institute of Oceanography (IEO-CSIC) participated in the search for Tomás Gimeno and his daughters from May 30 to July 1, 2021. During that period, in addition to managing to recover Olivia’s body submerged more of a thousand meters, the members of this operation recorded 392 hours of underwater filming and mapped 250 square kilometers of the Atlantic seabed [entre 100 y 2.000 metros de profundidad]. The mission seemed impossible when on May 20 a court order was received at the Spanish Institute of Oceanography to assemble a specialized team: the expedition that left El Ferrol on May 23 was made up of five scientists, eight engineers and eleven crew members .
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